High-resolution imaging of the musculoskeletal system.

Sj, Erickson

doi:10.1148/radiology.205.3.9393511

Cited by 158 publications

(78 citation statements)

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“…Some authors defend that the US presents a better spatial resolution then MRI, when studies obtained with more modern devices are compared (14) . This is due to the fact that tissues with few mobile protons emit little or no signal, therefore, tendons internal architecture is not well demonstrated by MRI (8,15) . US also has the advantadge of allowing the study of tendons in a real-time dynamic mode (16)(17)(18) .…”

Section: Introductionmentioning

confidence: 99%

Avaliação morfométrica do tendão de Aquiles por ultra-sonografia

et al. 2006

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OBJECTIVE: The aim of this study was to determine the normal values of the tendon thickness in the anteroposterior dimension and width in the transverse dimension in our population, correlating them with gender, age ranges, race, ABO blood group and body mass index. MATERIALS AND METHODS: Ultrasonographic examination was employed to evaluate 100 Achilles tendons of 50 healthy volunteers in order to measure the tendons thickness in the anteroposterior dimension and width in the transverse dimension. All examinations were performed by the same sonographer, using an ultrasound equipment with a 10 MHz linear transducer. RESULTS: Among the 50 volunteers studied, 25 were men and 25 were women, ranging from 20 to 52 years (average 33.9 years). The tendons average width was 13.3 ± 1.0 mm in the female group and 14.4 ± 1.4 mm in the male group; the average thickness was 5.4 ± 0.5 mm in the female group and 5.6 ± 0.6 mm in 2 the male group. These measurements were significantly lower in the female group (p < 0.05). There was no significant correlation between the tendon measurements and the age ranges, ABO blood groups and races. The tendon width was significantly higher in the overweight body mass index group than in the normal body mass index group. CONCLUSION: Mean values found in our study differ significantly from the majority of other studies in the literature, demonstrating the importance of creating our own standards employing tables based on our population in daily clinical practice.

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Section: Introductionmentioning

confidence: 99%

Avaliação morfométrica do tendão de Aquiles por ultra-sonografia

et al. 2006

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“…However, it is operator dependent and does not allow visualization of intraarticular structures such as the labrum, capsule and cartilage and has limited ability to evaluate intraosseous abnormalities. [20][21][22] Therefore, we chose MRI because it enables the acquisition of images in multiple planes within one single examination, offers good anatomical visualization and all structures of the joint may be analyzed (bone, cartilage, tendons, muscle, joints). Given the fact that clinical tests are difficult to perform in SCI individuals, a complementary examination, which identifies all structures from the shoulder, is beneficial.…”

Section: Discussionmentioning

confidence: 99%

Is sport practice a risk factor for shoulder injuries in tetraplegic individuals?

et al. 2015

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Study design: A retrospective cohort. Objectives: To report the incidence rates of shoulder injuries diagnosed with magnetic resonance imaging (MRI) in tetraplegic athletes and sedentary tetraplegic individuals. To evaluate whether sport practice increases the risk of shoulder injuries in tetraplegic individuals. Setting: Campinas, Sao Paulo, Brazil. Methods: Ten tetraplegic athletes with traumatic spinal cord injury were selected among quad rugby athletes and had both the shoulders evaluated by MRI. They were compared with 10 sedentary tetraplegic individuals who were submitted to the same radiological protocol. Results: All athletes were male with a mean age of 32.1 years (range 25-44 years, s.d. = 6.44). Time since injury ranged from 6 to 17 years, with a mean value of 9.7 years and s.d. of 3.1 years. All sedentary individuals were male with a mean age of 35.9 years (range 22-47 years, s.d. = 8.36). Statistical analysis showed a protective effect of sport in the development of shoulder injuries, with a weak correlation for infraspinatus and subscapularis tendinopathy (P = 0.09 and P = 0.08, respectively) and muscle atrophy (P = 0.08). There was a strong correlation for acromioclavicular joint (ACJ) and labrum injuries (P = 0.04), with sedentary individuals at a higher risk for these injuries. Conclusion: Tetraplegic athletes and sedentary individuals have a high incidence of supraspinatus tendinosis, bursitis and ACJ degeneration. Statistical analysis showed that there is a possible protective effect of sport in the development of shoulder injuries. Weak evidence was encountered for infraspinatus and subscapularis tendinopathy and muscle atrophy (P = 0.09, P = 0.08 and P = 0.08, respectively). Strong evidence with P = 0.04 suggests that sedentary tetraplegic individuals are at a greater risk for ACJ and labrum injuries.

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“…Advantages of US include portability, low cost, and lack of contraindications, whereas disadvantages relate to limited assessment of the capsule, labrum, and cartilage as well as the inability to evaluate purely intraosseous abnormalities. The spatial resolution of images obtained with US is higher than that of images obtained with routine MR imaging (28), and patients prefer US examination to MR imaging (29).…”

Section: Methods and Conference Preparationsmentioning

confidence: 97%